Phytochemistry

Secondary metabolite content and amino acids content of diploid and tetraploid potato lines and varieties.

1D and 2D NMR spectra, UV-vis., IR, HREI-MS and polarimetry data of the new compounds : (+)-4α-acetoxy-gymnomitr-3(15)-ene (1), (+)-9α-acetoxy-gymnomitr-3(15)-ene (2), (-)-4-hydroxy-β-barbatene-9-cinnamate (3), (+)-1-oxo-gymnomitr-2β,15-diol (4), (+)-myltayl-5-one-4β-ol (8), chiastaucolin A (9) and chiastaucolin B (10) are shown in a single pdf file.

The files contain data obtained from GCMS (single quadrupole), UPLC-PDA and LCMS (LC-QTof). The sample preparation with internal standard and sample analysis was performed as previously published for Musa tissue (Drapal et al., 2019). Samples were randomised and analysis performed in batches each including 20 samples, a quality control and an extraction blank. Aliquots for LC-ESI-QqTOF analysis (700 µl aqueous phase) were dried down and resuspended in methanol/water (100 µl, 1:1, v/v) under the addition of an internal standard. Homogentisic acid (5 µg/sample) was used for Fougamou and Mbi egome and genistein (2.5 µg/sample) for the diversity panel. Aliquots for UPLC-DAD analysis (700 µl organic phase) were dried down and resuspended in ethyl acetate/acetonitrile (1:9, v/v, leaf: 100 µl; peel and pulp: 50 µl). Aliquots for of peel and pulp sample extracts (140 µl aqueous phase) were dried down with an internal standard (d4-succinic acid, 10 µg/sample) and derivatised before analysis by GC-MS (EI, single quadrupole) in splitless mode with a temperature gradient of 70−325°C (Price et al., 2016). Data analysis and metabolite identification was also performed as previously reported for Musa tissue (Drapal et al., 2019). The resulting data tables comprised relative quantities (to the relevant internal standard) of metabolites detected by GC-MS and LC-MS and absolute quantities for metabolites measures by UPLC-DAD. All metabolites were expressed relative to the sample weight (µg/g dry wt.).

Efficiency of photooxidation processes in senescent leaves of marine and terrestrial angiosperms

Alignment of CcCLS anbd CoCLS

The file contains relative abundances of heterocyst glycolipids in nostocalean and stigonematalean cyanobacteria.

The raw data of positive ion mode contained 4 quality control (QC) samples and 24 experimental samples, from which 1914 Peaks were extracted.

raw dataset of metabolites profiled in root exudates of wheat following inoculation with either Rhizoglomus irregulare or Trichoderma atroviride